No, wasting time, resources and money while increasing the inherent complexity and risk of a system to gain absolutely no benefit is a very bad idea.

>Just because someone can load up my car on a flat bed tow truck doesn't mean it's pointless for me to have locks on the doors and ignition.

Idiotic comparison, which makes me think you are just totally disingenuous. The point I made was that with the same amount of effort a plane is compromised, with or without a secure bus. This is fake security, it doesn't protect anything.

Just tell me an attack on the bus of an airplane which couldn't have just as easily been performed outside of the bus.